Stove or furnace.



PATENTED MAR. 13, 1906.

11. J. .HOUGH'.

STOVE 0R FURNACE.

' APPLIUAT'IDI FILED JULY 27, 1905.

III/IIIIIIIIII/III/I/IIII/III/I/ quantity into the UNITED STATES PATENTOFFICE.

HIRAM J. HOUGH, OF AKRON, OHIO,

ING COMPANY, OF AKRON,

STOVE OR FURNACE Specification of Letters Patent.

Patented March 13, 1906.

Application filed July 27. 1905. Serial No. 271,488.

To all whom it may concern:

Be it known that I, HIRAM JAMES HoUGH, a citizen of the United States,residing at Akron, in the county of Summit and State of Ohio, haveinvented new and useful Improvements in Stoves or Furnaces, of which thefollowing is a specification.

My invention has relation to the construction of combustion devices forstoves and furnaces and the object of my invention is to provide a newand improved means for causing as nearly as possible a perfect andeconomical combustion of fuel therein, which will possess all theordinary advantages of a direct draft to and through the fuel beingconsumed, as well as the additional advan tage of supplying to the fuelan evenly-dis tributed and readily-regulated amount of oxygen to thesides of the mass of burning fuel, which will cause the complete andeconomical combustion of the same from the outside thereof, leaving thecentral portions of the fuel to gradually coke, thus permitting the fuelto give off its aseous contents outwardly toward the walls of thecombustionchamber, whereby these gases become intermingled with thefreshly-supplied oxygen from my improved means, causing the commingledfluids to burn with great intensit immediately in contact with the wallsof the combustion chamber, which are thereby more intensely heated thanwould be possible were the burning of the combined fluids to take placenear the more central portions of said chamber.

The invention further aims to provide an ash-pit for the device providedwith an outwardly-flaring upper portion to constitute an annular pocketand to seat within said outwardly-flaring portion a slotted ring memberon which the fire-pot constituting a portion of the combustion-chambermay be supported and to admit air duly regulated as to space formed bysaid outwardly-flaring portion of said ash-pit, whereby the same maypass through the slots in said ring-section and from there bedistributed evenly and directly to the fuel sustained within thecombustion-chamber.

The invention further aims to provide an effectual device foraccomplishing the hereinbefore mentioned objects which will be strong,serviceable, and readily handled and best) be provided with an inlet,(not in which the regulation of the amount of air supplied by the fuelmay be easily controlled.

With the foregoing and other objects in view the invention consists ofthe novel construction, combination, and arrangement of partsconstituting the device to be hereinafter referred to, and illustratedin the accompanying drawing, which forms a part of this specification,in which is shown the preferred embodiment of understood that changes,variations, and modifications can be resorted to which come within thescope of the claims hereunto appended.

The drawing represents a central vertical section of my improved device.

In the drawing, 1 represents the ash-pit of a stove or furnace, whichmay be of any desired or preferred type and may (if deemed shown,) asits construction may be of the common type, and its incorporation in thedrawing will not add to the better understanding of this invention. Itwill be further stated that the description herein will be confined tofur naces, although the device (with very slight modifications) is fullycapable of use in connection with heating stoves. The upper portion ofthis ash-p1t is provided with an outwardly-flaring annular pocket 2, andthe top of this annular an annular stated.

At the point where the outwardly-flaring pocket 2 joins the main portion1 of the ashpit a curved shoulder is formed provided at suitable pointswith integrally-formed seats 3. The number of these seats 3 isimmaterial, but it willbe generally found that three is the best numberto be employed. Arranged to rest upon these seats 3 is anannularlyformed member 4, having extending upwardly from its lower edgea series of slots which constitute between them a plurality of teeth 5,and the upper portion of this member 4 is further provided with anannular groove 6. At selected points in this member 4 the teeth 5 areintegrally extended, thereby constituting a lurality of teeth 7 longerthan the balance of the teeth 5. The elongated teeth 7 are so disposedand formed as to rest upon the seats 3, and thereby support the annularmember 4 slightly above the shoulder pocket 2 is provided with groove 13for a purpose to be the invention; but it is to be ICC of the ash-pit insuch a manner that the teeth 5, which constitute the main bottom edge ofthis member 4, are spaced apart from the shoulder sufficiently far topermit the ready descent of ashes or other matter which might accumulatein the annular pocket 2.

Arranged to be seated in the groove 6, ex isting in the top of theannular member 4, is a fire-pot 8. This fire-pot 8 may be cylindrical oroutwardly flaring or shaped in the form of a frustum of a cone, as therequirements of the case may demand, and it is preferably furtherprovided on its lower edge with a rabbet which will permit the balanceof the bot tom edge of the fire-pot 8 to enter the groove 6, leaving theinner face of the fire-pot to correspond and be in alinement with theinner face of the annular member 4.

The groove 6 in the upper portion of the annularly-formed member 4 is ofsuflicient width to permit the perfect seating of the fire-pot thereonand also to permit the seating therein of a downwardly-turned edge of anannular cap or ring 9, which is adapted to surround the fire-pot 8 andallow its outer downwardly-turned edge to seat in the groove in the topof the outwardly-flaring portion 2 of the ash-pit and cover the annularpocket existing between the outwardly-flaring portion 2 of the ash-pitand the annularly-constructed member 4, which supports the firep It willbe seen that the outwardly-flaring portion of the ash-pit 2, the cap orring 9, and the annular member 4 of the combustionchamber willconstitute in connection with each other an annularly-formed air duct orpocket 10, which will surround the combustion-chamber of the device, andthe air admitted to the annular air-duct 10 will escape therefromthrough the slots in the member 4 existing between the teeth 5 thereofand unite with the fuel being consumed in the combustion-chambersurrounded by this member 4 and fire-pot 8.

In order to admit air and duly regulate the admission thereof to theannular air-duct 10, there is rovided an inlet 11, preferably integralwit the ash-pit, and further provided at its outer end with a door orgate 12. This door or gate 12 will serve to regulate the amount of airwhich is admitted to the annular duct 10, and thus regulate theintensity of the combustion which is to take place within thecombustion-chamber of the device.

It will be obvious that the cap or ring 9 may be made in severalsections or may be made as an integral article without in anymannerdeparting from the nature of this invention, the main idea of which isto surround the combustion chamber with an annular air duct by which airmay. be admitted through the side walls thereof to the fuel containedtherein. It will be further obvious that air admitted to the ash-pitthrough the inlet-door thereof will in addition to passing directly upthrough the fuel contained upon the grate of the device also passlaterally into the annular duct 10 and from thence through the slottedlower portion of the member 4 to the fuel at or near its sides where thecombustion is taking place.

It will readily be seen that any ashes or other matter which mi ht beforced from the combustion-chamber tl lrough the slots in the annularmember 4 between the teeth 5 will fail to lodge upon the inner wall ofthe annular pocket 2 by reason of the curvilinear conformation impartedthereto, but will fall therefrom and descend into the main body of i theash-pit 1.

What I claim, and desire to secure by Letters Patent, is'

1. The combination in a device of the class described, of an ash-pitprovided at its upper part with an outwardly-flaring annular portionforming with the main body of the ashpit a shoulder, a slotted annularmember arranged to seat on said shoulder and having means to sustain thefire-pot of the device, the top of said annular member being spacedapart from the topof the outwardly-flaring portion of said ash-pit, andmeans to cover the space existing between them.

I 2. The combination in a device of the class described, of an ash-pitprovided at its upper part with an integral outwardly-flaring portionforming with the main body of the ashpit at its junction therewith anannular shoulder, an annular member arranged to seat on said shoulderhaving upwardly extending slots in its lower portion, and means on itsupper portion to sustain the fire-pot of the device, the top of saidannular member being spaced apart from the top of the ash-pit, and meansto cover said space.

3. The combination in a device of the class described, of an ash-pitprovided at its upper portion with an integral outwardly-flaring annularportion forming a shoulder at its point of junction with the main bodyof the ash-pit, an annular member arran ed to rest on said shoulder,having downwardl -extending teeth at its lower portion, and means at itstop for sustaining the fire-pot of the device, the top of said annularmember being spaced apart from the top of the ash-pit, and means tocover said space.

4. The combination in a device of the class described, of an ash-pitprovided at its upper portion with an integral outwardly-flaring annularportion forming with the main body of the ash-pit at its junctiontherewith an annular shoulder, an annular member provided withdownwardly-extending teeth in its lower portion, a pluralityflof saidteeth being longer than the balance thereof, said elongated teeth beingarranged to rest on the annular shoulder of said ash-pit and sustainsaid annular member, said annular member having at its top means tosustain the fire-pot of the device, said top portion of said annularmember and the top of said ash-pit being spaced apart, and-means tocover said space.

5. The combination in a device of the class described, of an ash-pitprovided at its upper part with an integral outwardly-flaring annularportion forming with the main body of the ash-pit at its junctiontherewith an annular shoulder, an annular member provided withdownwardly-extending teeth in its lower portion, a plurality of saidteeth being longer than the balance thereof, said elongated teeth beingarranged to rest on said annular shoulder and sustain said annularmember spaced apart from said shoulder, said annular memher having meansat its top for sustaining the fire-pot of the device, the top of saidannular member being spaced apart from the top of said ash-pit, andmeans to cover said space.

6. The combination in a device of the class described, of an ash-pitprovided at its upper portion with an integral outwardly-flaring annularportion forming with the main body of the ash-pit at its junctiontherewith an annular shoulder, an annular member mounted on saidshoulder and provided with means at its top to sustain the fire-pot ofthe device, the top of said annular member being spaced apart from thetop of said ash-pit, means to cover said space, and means to admit airto the space existing between said annular member and theoutwardly-flaring portion of said ash-pit.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

HIRAM J. HOUGH.

Witnesses GLENARA FOX, 0. E. HUMPHREY.

